US320579A

US320579A - Oscillating watee meter

Info

Publication number: US320579A
Authority: US
Publication date: 1885-06-23
Anticipated expiration: 1902-06-23

Description

(No Model.) y 2 Sheets-Sheet 1.

' L. H. NASH.

OSGILLATING WATER METER. No. 320,579. Patented June Z3, 1885.

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(No Model.) 2 Sheets-Sheet 2..

L. H. NASH.

OSGILLATING WATER METER.

No. 320,579. Patented June 23, 1885..

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NITnD STATES PATENT Ormeao LEWIS HALLOOK NASH, OF BROOKLYN, YASSIGrNOR TO THE NATIONAL METER COMPANY, OF NEW YORK, N. Y.

OSCILLATING WATER-METER.

SPECIFICATION forming part of Letters Patent No. 320,579, dated June 23, 1885. Appiication filed April 26, 18E4. Renewed January 24, 1885. (No model.)

New York, have invented new and useful Imv provements in Oscillating Tater-Meters, of

which the following is a specification.

In an application for apatent filed by me December 18, 1883, under Serial No. 114,916, I have described a water-meter in which an eccentrically-moving piston is controlled by co-operating studs and a radial abutment, which divides the infiow from the outflow, upon which the piston swings in its movement to divide the chamber-case into receiving and discharging spaces; and I do not, therefore, broadly claim herein such means for controlling an eccentrically-moving piston.

The object of my present improvement is to increase the delivering capacity of the meter, to provide an effective joint of the piston with the abutment, to provide a free passage of the water into and from the piston-chainbers at each side of its bearing upon the radial abutment upon which the piston has a sliding swinging movement, and to provide for the yielding of the piston to free itself of an obstruction entering the case.

My improvements consist of an eccentrically-moving piston having two or more concentric rings connected by a web, combined with an inclosing-casehaving two or more ringprojections, and a radial abutment extending from the inner ring projection to the side of the case, to divide the inlet ports from the outlet ports, whereby each ring of the piston performs a dividing action within the corresponding annular space of the case, and the total displacing action of the piston is thereby increased, each receiving and discharging space of the case having corresponding inlet and outlet ports.

My invention also embraces a novel means of forming a joint of the piston with the radial abutment, to prevent the passage of the water at the point upon which the piston swings from the inlet to the outlet in the eccentric movement of the piston; also, my invention consists in controlling the movements of the piston by a yoke or link connecting it with the case, yhaving a yielding bearing, whereby the piston has capacity for yielding to prevent its stoppage from obstruction; and my invention further consists in constructing the piston with a slot bearing upon the abutment, supplemented by passages or ports in the wall on each side of said slot, for the purpose of giving a free passage of the water while having the bearing-slot for the piston.

Referring to the accompanying drawings, Figure 1 represents a vertical section of a nieter embracing my improvements, taken on the line Z Z of Fig. 2, which represents a top view of the meter with the upper half of the case removed, showing the piston in plan. Fig. 3 represents a horizontal section of the meter, taken on the line y y of Fig. 1. Fig. 4 represents a side view of the piston, showing the side slot supplemented by the water-passages. Fig. 5 represents an enlarged detail ofthe loop or link connection of the piston-controlling studs and its yielding bearings. Fig. G represents a detail showing a modification of the wall-ports of the piston.

The meter-case A is preferably of cylindrical form, closed by a head, O, and having two or more interior concentric ring-projections, A2 A, about equally placed within the case, to divide it into separate chambers J and K, and open at their upper ends. The case has a radial abutment. A', which extends fromthe inner ring-projection, A2, to the side wall of the case, to divide the inlet from the outlet ports, and is of a height equal to the ringprojections.

The piston consists of two or more concentric rings, B B, connected by a web, B,Which forms its upper closed end, as shown in Fig. l, and they are so disposed relatively with the case-ring projections as to form a continuous joint-contact therewith and with the inner wall of the case, whereby to divide the case-chambers and thepiston into receiving and discharging spaces. The piston-web is extended to form an externally projecting arm, B2, of suitable length and form to makea joint with the top of the abutment and the case. rIhis arm extends through an opening in the wall of the case and into a chamber, r, formed within the case, and is of a form adapted to make a joint-contact with the edges s s of the opening in the case-wall in all positions of the movement of the piston to prevent the passage of the water from one side of the abutment to the other at this portion of lthe case, while the web oi" the piston forms a joint with the .upper open ends of the ring-projections and the abutment, between which and the top head it is fitted to operate. One of the rings, as B3, has a side slot, e, adapted to allow the piston to move over the abutment and form a guide-bearing thereon, the edges ff of said slot forming said bearing and extending from the open end tothe web of the piston. Cooperating with this guide-bearing formed by the slot e in controlling the movement of the piston, I provide its web with a depending stud, F, and the lower head of the case with a similar stud, II', and connect them by a link oryoke, L, having interior bearings, e e?, supported upon an intervening spring, m, whereby to provide a positive connection,which will allow the piston to yield in ease ahard substance should enter between its rings and the caserings in the liow ofthe water, and' thus prevent the stoppage of the meter. llhe inlet-passage I on one side of the radial abutment conveys water to the inlet-ports I2 I'1 in the lower cylinder-head and to the port m in the case-wall, while the discharge or' the water is effected through corresponding` ports, O2 Oin thelower cylindenhead, and the port xin the case-wall on the opposite side of the abutment to the outlet-passage O. The outer case-ring projeetion, A, has ports mi mi on each side of the abutment, which form communication with the annular spaces J K, both inside and outside of said ring-projections, for the free flow of the water. The interior projecting ring, B, ot' the pist-on has a slot, e, whereby it is allowed to pass over the abutment in the eccentric movement of the piston and permit a free flow of water into and out of its chambers.

The exterior ring-projection, B3, has pro.

vision for iniiow and outliow of the water, which consists of a series of holes, c2, formed in said ring-projections on each sidel of the slot e, as shown in Fig. 4, whereby the pistonguide-bearing edges f f of the slot are used with the advantage of a free flow of water at this point along the full height of the piston, and with such arrangement of ports and passages tlle piston works perfectly free of resisting suction.

I have shown and described a meter constructed with a piston having an end web; but the web may be arranged to divide the piston into upper and lower chambers, and the case formed with upper and lower ring projection, the functions and operations of all the parts being the same.

The connectingshalt l ofthe registering mechanism is journaled in the upper easehead, having at its inner end a crank-arm, 2, adapted to bear upon and be driven by a pin, F, on the piston-web, while the outer end of said shaft extends through the case-head C, and carries a pinion, b, which meshes with a gear-Wheel, a, on the shaft d, which is stepped in the head, and, passing through the stuffingboX of a cover, D, has a gear-wheel, c, which engages with and operates any suitable registering mechanism by which the revolutions oi' the piston are indicated.

In the operation of the meter, the pistou being in the position shown in Fig. 2, the water enters through the inlet passage I, thence into the annular outer space, J, through the ports I2 and x and 02, and into the inner annular space, K, of the case through the ports I'l and x2, and presses against the inner surfaces of the piston-rings B B3, and forces the piston in the direction of the arrow 3, while the water discharges through the corresponding ports on-the opposite side ofthe abutment, the inlet and outlet currents being indicated by the arrows in Fig. 3.l Vhen the piston has commenced to move to the position shown in Fig. 3 the water will enter the casechambers outside of each ring of the piston through the'same ports, and, pressing against their exterior surfaces, continue to force the piston in the same direction, while the water discharges from the opposite side of the casechambers through the corresponding ports on the opposite side oftheabutment, driving the piston into the position shown in Fig. 3. In this position the eXterior pressure ot' the water alone acts upon the piston, but as the piston passes this position the water again enters the interior receiving spaces of the piston through the ports l2 I" of the case-head and the ports c c2 of the piston-rings, continuing the movement of the piston, while the water escapes from the discharging spaces of the piston Vthrough the corresponding outlet-ports on the opposite side ofthe abutment. In this continuous movement of the piston it maintains a perpetual division of the case chambers into receiving and discharging spaces, and in the eccentric movement it pushes forward the crank-arm 2, and thus operates the registering-gearing (which is not shown) to register the movement of the piston.

While I have shown the piston-slot supplemented with drilled wall perforations, the edges of the slot may be notched and effect the same purpose; or I may form vertical passages c2 in the piston-walls on each side of its bearing-edges f f, as seen in Fig. 6, which passages open into the cylinder-ports I`l O2, and intothe receiving and discharging spaces on each side ofthe abutment, the said vertical wall-passages opening at ci on each side ofthe bearing-edgesjfinto the said spaces, and thus allow the water to pass into and from these spaces the full height-ot' the piston on its inside and on its outside.

In another application for a patent led by me bearing even date herewith I have shown, described, and claimed a piston having an eX- ternal arm, which serves the functions of forming a guide upon which the piston swings and a joint to prevent the liow ofthe water through the abutment-opening. In the present construction thel guide upon which the piston IOC IIO

of its arm also changes, so that its end, being' enlarged or having a T shaped head,will form by its points b3 b3 a joint with one or the other side s2 of the wallchamber r, so that as the piston is guided by the abutment and the coacting studs the piston-arm makes the joint,

as stated.

i SO

It is obvious that a single ring-piston may be used with the side slot, e, the wall-ports o2, and the guideedges ff.

l claiml. The combination, with a metcrlcase having two or more concentric ring-projections and a radial abut-ment extending from the inner one to the side of the case, of an eccentrically-oscillating piston composed of two or more concentric rings, the outer one forming a guide-bearing upon said abutment, and inlet and outlet head-ports opening into said concentric ring-proj ections,baving direct communication with the inlet and outlet passages, substantially as described, for the purpose specified.

2. rlhe combination', with a meter-case having inlet and outlet ports divided by a radial abutment, as described, and having two or more ring-projections, the outer one forming a guide-bearing upon said abutment, of an eccentrically-oscillating piston composed of two or more rings having an external arm adapted to form a joint with the radial abutment at every point in the movement of the piston, and means, substantially such as described, co-Operating with said abutment for controlling the piston in its path, for the purpose specified.

3. The combination, with a metencase having inlet and outlet ports divided by an abutment, as described, of an eccentrically-oscillating piston having a side slot adapted to form a guiding-bearing upon said abutmentwithin the chamber of the case,and having an external arm adapted to form a joint with the abutment outside of the chambencase, and means, substantially such as described, for controlling the piston in its path, for the purpose specified.

4. rlhe ring-piston having a side slot, e, supplemented by perforations or openings on each side of said slot, and an external jointforming arm, combined with a case having inlet and outlet ports divided by an abutment, and

the connected controllingstnds, substantially as described, for the purpose specified.

5. The combination, in a water-meter, of a case having inlet and outlet ports divided by an abutment, as described, of an eccentrically-oscillating ring-piston having a side slot and a controlling connection with the case, consisting of the iiXed interior casestud, and a coacting piston connected by a yielding bearing, substantially as described, for the purpose specified.

6. The combination of the case having inlet and outlet ports divided by an abutment and by ring-projections, as described, with a piston having two or more eccentric rings, the outer ring having the side slot, e, and ports or passages o2 in its wall and the inner ring having the wall-ports o, and means, substantially such as described, for controlling the piston.

7. The combination of the case A, having inlet and outlet ports divided by an abutment, with a ring-piston having a side slot, e, adapted to form a guide, ff, upon said abutment, provided with wall ports or passages on each side of said guide, as herein set forth.

8. The case having the head-ports and the outer wall-ports, .r x, divided by an abutment, as described, combined with a ring -piston having thewall-slot e, adapted to form a guide,

ff, upon said abutment, and the wall-ports o2 o, arranged as and for the purpose described.

9. The watenmeter herein described, consisting of the case A, having the inlet and outlet ports, a radial Vdividingabutment, A', for said ports, and two or more concentric ring-projections, A2 A, a ringpiston having a transverse web, B', an external arm, B2, two or more concentric ring-projections, B B3, the connected studs H F, the said rings A3 B B3 and the casewvall having the ports .r x m2 x3 and yv e, and the said piston operating the registering-gearing by the pin F, all constructed and arranged for Operation, substantially as describe-d.

10. The combination of the case A, having inlet and outlet ports and a dividing-abutment, with a ring-piston having a transverse web, the wall-slot e, adapted to form a guide,

ff, upon said abutment, a radial arm, B, and

a case-chamber, the said arm being adapted to form a joint with the said chambenwalls in the cccentrically-Oscillating movement of the piston upon the abutment, substantially as described, for the purpose specified.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

LEWIS HALLOGK NASH.

Vitnesses:

A. E. H. JOHNSON, J'. W. HAMILTON J OnNsON.

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